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| Patents for L. O. Langworthy | |||||
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| Number | Date | Patentee | Title | Type | |
| 799,217 | Sep. 12, 1905 | W.N. Bee | Wrench | quick adjust wrenches | |
| 850,756 | Apr. 16, 1907 | J.R. Hunt | Improved Ratchet Wrench | ratchet wrenches | |